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An Economic Evaluation of High Density Apple Planting Systems in Western New York

Cornell University Agricultural Experiment Station, Ithaca, N.Y. Dept. of Agricultural Economics

出版	Department of Agricultural Economics, Cornell University Agricultural Experiment Station, New York State College of Agriculture and Life Sciences, 1974
URL	http://books.google.com.hk/books?id=dgNTHAAACAAJ&hl=&source=gbs_api